Stephenson County Lake Quality
Illinois, 1 lake, measured by Illinois EPA
Stephenson County holds 1 monitored lake. With a sample that small the county-level summary describes those specific waters, not necessarily every water body in the county. The 1 monitored lake in Stephenson County carries whatever clarity, phosphorus, and chlorophyll-a readings Illinois EPA has published, shown as reported.
Most of the county's monitored lakes are shallow, under 50 feet, which means wind keeps the water column mixed all summer and sediment-bound phosphorus releases back into the surface layer whenever the bottom is disturbed.
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Quick Answers for Stephenson County
Planning a trip? Check special fishing regulations for Lake Le-Aqua-Na — or check the official Illinois fishing regulations.
All Lakes in Stephenson County
1 lake · 0 ranked on readings, 1 without enough sampling0 lakes ranked on readings · 1 without enough sampling, hidden
| # | Lake | Clarity | Phosphorus | Algae | Trophic | Max Depth | Access |
|---|---|---|---|---|---|---|---|
| Lake Le-Aqua-NaStephenson | No recent samples | No recent samples | No recent samples | No recent samples | 23 ft | ✓ Public |
NR = no nutrient or algae reading on record. The measurements are published as the authority reports them. Where the data comes from.
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Source: the Illinois Environmental Protection Agency. See data sources.